28961712

素因数分解:

$2^4\times 3^6\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:230

約数の個数: 140

約数和(自身を含む): 91077504

約数和(自身を除く): 62115792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 191, 208, 216, 234, 243, 312, 324, 351, 382, 432, 468, 486, 573, 624, 648, 702, 729, 764, 936, 972, 1053, 1146, 1296, 1404, 1458, 1528, 1719, 1872, 1944, 2106, 2292, 2483, 2808, 2916, 3056, 3159, 3438, 3888, 4212, 4584, 4966, 5157, 5616, 5832, 6318, 6876, 7449, 8424, 9168, 9477, 9932, 10314, 11664, 12636, 13752, 14898, 15471, 16848, 18954, 19864, 20628, 22347, 25272, 27504, 29796, 30942, 37908, 39728, 41256, 44694, 46413, 50544, 59592, 61884, 67041, 75816, 82512, 89388, 92826, 119184, 123768, 134082, 139239, 151632, 178776, 185652, 201123, 247536, 268164, 278478, 357552, 371304, 402246, 536328, 556956, 603369, 742608, 804492, 1072656, 1113912, 1206738, 1608984, 1810107, 2227824, 2413476, 3217968, 3620214, 4826952, 7240428, 9653904, 14480856, 28961712]

約数ペア:

[(1, 28961712), (2, 14480856), (3, 9653904), (4, 7240428), (6, 4826952), (8, 3620214), (9, 3217968), (12, 2413476), (13, 2227824), (16, 1810107), (18, 1608984), (24, 1206738), (26, 1113912), (27, 1072656), (36, 804492), (39, 742608), (48, 603369), (52, 556956), (54, 536328), (72, 402246), (78, 371304), (81, 357552), (104, 278478), (108, 268164), (117, 247536), (144, 201123), (156, 185652), (162, 178776), (191, 151632), (208, 139239), (216, 134082), (234, 123768), (243, 119184), (312, 92826), (324, 89388), (351, 82512), (382, 75816), (432, 67041), (468, 61884), (486, 59592), (573, 50544), (624, 46413), (648, 44694), (702, 41256), (729, 39728), (764, 37908), (936, 30942), (972, 29796), (1053, 27504), (1146, 25272), (1296, 22347), (1404, 20628), (1458, 19864), (1528, 18954), (1719, 16848), (1872, 15471), (1944, 14898), (2106, 13752), (2292, 12636), (2483, 11664), (2808, 10314), (2916, 9932), (3056, 9477), (3159, 9168), (3438, 8424), (3888, 7449), (4212, 6876), (4584, 6318), (4966, 5832), (5157, 5616)]